Cooking-stove



(No Model.)

M. N. PIEDRA.

COOKING STOVE- 110,457,667. Patented Aug..11, 1891.

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UNITED STATES- PATENT OFFICE.

MIGUEL N. PIEDRA, OF LAGOS, MEXICO.

COOKlNG STOVE.

SPECIFICATION forming part of Letters Patent No. 457,667, dated August11, 1891.

Application filed December 31, 1890. Serial No. 3'76 .331. (N0 model.)

To all whont it may concern.-

Be it known that I, MIGU L N. PIEDRA,1'6- siding at Lagos, J alisoo,Mexico, have made certain newand useful Improvements in Oooking-Stoves,of which the following is a specification.

My invention relates to wood cookingstoves; and it has for its object toprovide a stove of this character in which the products of combustionare caused to pass around the ovens in such a manner that none of theheat is wasted.

It has also for its object to provide a stove in which the fire-chainheris arranged in the rear of the stove-body, whereby the radiated heatwill be drawn from the front of the stove and thereby prevent it fromradiating against the body of the user during the operation of cooking.

Furthermore, it has for its object to provide a stove to which the fuelcan be easily fed and in which combustion will be the more evenlyobtained, in which the draft can be easily regulated, and in which theentire products of the heat can be defle ted over the ovens, therebyallowing for bringing the ovens to a greater heat without inconvenienceto the user.

To this end my invention consists in the novel arrangement and'pecnliarcombination of parts, all of which will hereinafter be fully describedin the annexed specification, and particularly pointedout in the claims,referen ce being had to the accompanying drawings, in which Figure l isa horizontal section of my improved stove, taken on the line 1 1, Fig.2. Fig. 2 is a rear view of my improved stove. Fig. 3 is a verticaltransverse section of the same on the line 3 3,.Fig. 2. 'Fig. i is ahorizontal section on the line 4 4, Fig. 3; and

Fig. 5 is a transverse section on the line 5 5, Fig. 2, but showing amodified arrangement of the fire-chamber hereinafter specificallyreferred to.

In the drawings, A indicates the stove-bod y, which is provided with theordinary top B, formed with the usual cooking openings. The rear part ofthe body A is formed with a transverse fire-chamber O, which extendsentirely across the rear part of the stove, as

clearly shown in the drawings, such chamber extending up to the top ofthestove, being extended near its bottom, as at C C, form ingfeed-openings, through which the fuel is fed in a manner presentlyexplained, said extensions being held olosed by means of the extensiblecover-plates D D.

Centrally of the lower portion of the chamber O the back and bottom arecut away, as at E, and at such portion is provided the grate F, of theconstruction shown, the front part f thereof extending up about midwayof the opening E, and below such grate is arranged the ash-box G, in amanner clearly understood by reference to the drawings. Swinging doors Hand I arehinged tothe backwall a,- which are arranged to close over theopening E and swing in opposite directions, the door H serving to closeover the grate portion of said opening and the door I over the upperpart thereof.

In operation, when desired to cut off the draft from the fire-chamberboth doors H and I are closed over 1 he opening E. Then a complete draftis desired, the upperdoor remains closed and the door H is swung open,and when a partial draft is desired the upper door is opened and thedoor H closed. This arrangement, it will be observed, provides a verysimple and cheap manner of arranging the draft devices for the stove.

.I K indicate the ovens, which extend from the front wall a of thefire-chamber to the front wall a of the stove, being centrally dividedby a vertical partition L and provided with the ordinary swinging doorsM M, as shown. The end walls N N and the upper walls 0 of the ovens aredisposed so as to form heat-spaces n n at ends and spaces 0 0 over thetop of the ovens, while the bottoms P P of the ovens are arranged abovethe bottom a of the stove, forming heat-spaces 1) p, the division Lextending down to the bottom of, so

as to form a heat-spacep for each oven. Each of the spaces 1) p areconnected with the end spaces n 11-, and the spaces )2- n with thespaces 0 0, said heat-spaces p 1) being formed with heat-deflectors p p,so as to distribute the heat more evenly under the ovens.

Q Q denote the oiftake-flues, which communicate with the spaces 19 pnearthe center thereof, and at the lower end of the wall a said finesthen pass diagonally upward and discharge near the upper rear ends ofthe stove, as at g g, and, if desired, can be connected with a singleofftake-fiue in a manner clearly understood by reference to Fig. 2 ofthe drawings.

To provide for a complete distribution of the heat, I form aheat-channel R between the ovens, said channel (which is most clearlyshown in Figs. 2 and 3) extending from the front wall of the chamber 0,as at 'r, at an incline to the upper front wall of the stove, and

to provide for holding the heatin Volume and distributing it over theovens I form the said channel tapering upward and from its rear endforward, as shown. By this construction it will be observed the greatestamount of the heat will extend from the chamber 0 up into the channel Rand from it over the top of the ovens. If desired, the chamber 0 neednot extend up to the top of the stove, but be only of a heightsufficient to accommodate the feeding of the fuel through the sideextensions, as shown in Fig. 5 of the drawings. In this case the frontwall a of the chamber is curved over to the rear wall, thus allowing theupper parts of the ovens to extend from the front to the rear walls ofthe stove. By this arrangement all of the heat is carried up over theovens through the channel R.

In operation the stove is supplied with cordwood through the sideopenings C O, the construction of which 'allows for the insertion oflarge sticks or logs, the ends of which may project beyond theextensions 0, the caps D serving to lengthen the said extensions. Thefire having beenstarted and the draft-doors H and I adjusted as desired,the fuel as it is consumed at the grate portion of the chamber 0 can begradually pushed inward by closing up the caps D over the grate F. Nowthe heat as it is generated will pass up over the ovens, as stated, downinto the spaces 01 'It at the sides of the ovens, then into the spacespp under same, and out up into the oiftakes Q Q, which being arrangeddiagonally over the rear wall of the ovens, serve to still furtherdistribute the heat.

Manifestly the several heatspaces may be provided with dampers ofordinary construction, whereby the heat may be deflected so as to go allover the ovens or otherwise.

My improved stove can be manufactured at a small cost, it being verysimple in construction and effective for its desired purpose.

By arranging the fire-chamber in the man- .ner stated the necessity ofchopping up the extensions or openings C 0 serves to supply thenecessary fuel for a considerale time.

Having thus described my invention, what I claim, and desire to secureby Letters Pat-- ent, is-

1. In a cooking-stove, the combination, with the body formed with anoven or ovens extending from the front to the rear of the stove, of afire-chamber arranged at the lower rear portion of the oven or ovens,and combustion flues or spaces connected with said chamber and extendedabout the ends, tops, and bottoms of such ovens, substantially as andfor the purpose described.

2. A cooking-stove formed with a fire-chamber at the rear of its oven,such chamber consisting of a central grate portion and lateral adjustable-extensions, substantially as shown and described.

3. A cooking-stove formed of a body portion having two ovens extendedfrom the front to the rear wall of the stove, a heating-chamber arrangedat the rear of such ovens, heatspaces arranged about the top, sides, andbottom of the ovens, and a heat-channel arranged between the ovens andcommunicating with the said spaces and the heating-chamber,substantially as and for the purpose described.

4. In acooking-stove, the combination, with a plurality of ovensarranged to extend from the front to the rear of the stove, andheatspaces arranged about the top, sides, and bottom of said ovens,connected with the otftakeflue, of a fire-chamber arranged at the rearof such ovens, and a heat-channel arranged between the o'vens andextending diagonally from the fire-chamber to the upper front edge ofthe ovens, substantially as shown and described.

5. The combination, with the stove-body A and the ovens J K, of thefire-chamber 0, formed with a central opening E, the grate F, disposedtherein, lateral extensions 0 O, the detachable extensible caps D D, andthe draftdoors H I, all arranged substantially in the manner and for thepurpose described.

6. The combination, with the body A, the ovens J K, a firechamberarranged transversely to the rear wall of the ovens, and the heat spacesor fines arranged about the ovens, as stated, of the centraldraft-channel R, arranged diagonally between the ovens and taperedvertically and horizontally from its base upward. said channelcommunicating with the fire-chamber and the hot-air spaces about theovens, substantially as and for the purpose described.

MIGUEL N. PIEDRA.

IVitnesses:

FRED G. DIETERICH, SOLON C. KEMON.

ICC

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